Walking Club. The Walking Club of Arlington for adults 55+ will walk along the National Mall, D.C., 9:30 a.m. Cost is $3; newcomers welcome. Group leaves from Culpepper Garden Senior Center, 703-228-4403.

&lt;cal2&gt; Seminar. 7 p.m. at 2000 N. Glebe Road. Understanding the different stages of Alzheimer’s. Learn what to expect as the disease progresses and how to plan for the future. Free. RSVP to Jennifer Connors 703-524-5300.

Armchair Viewing of Art Exhibition. 1 p.m., Aurora Hills Senior Center, 735 S. 18th St. Four presentations, $14 or $5 for single session starting with “Pompeii and the Roman Villa” at the National Gallery of Art. Call to register 703-228-5722.

Writing Class. 11 a.m. at Langston-Brown Senior Center, 2121 N. Culpeper St Part of a two session series on writing condensed autobiographies for adults 55+. No fee; newcomers welcome. For more information call 703-228-5321.

Veterans Day Commemoration. noon at Aurora Hills Senior Center, 735 S. 18th St. with historian and veteran Les Albers. Cost is $6. Attendees are also asked to bring personal and health care items to be given to wounded soldiers. Register by Nov. 3 by calling 703-228-5722.

Trip. Seniors (55+) will travel to Philadelphia, PA for a tour of The Barnes Foundation museum, which houses one of the world’s greatest art collections. Cost is $106 which includes dinner at Maggiano’s Little Italy. Call Arlington Senior Adult Travel at 703-228-4749. Registration required.